A while ago I remember reading about a fix for the aluminum threads that usually disapear when you remove the steel oil lines from the thermostat.
Some kind of an adapter possibly??
I tried a search w/ no luck.
Is their such an "adapter" or do I need to buy a die to try and make new threads or hopefully not, is the thermostat now trash...?
Thanks!
Bob

I have heard of folks getting closest size adapter in inch or metric and tapping out to fit. Then again, did some engine work on a P-car with the thermostat fitting jb-welded in by the owner. I am not a fan of either of these, as tapping can get shavings in the thermostat, and jb-weld is obviously just red-necked to heck and now your oil line is permanent.

will this "Saver" sold by Pelican cut new threads as I have maybe 5% of the total thread height left and hope this may work.
I was thinking about using locktite so it won't leak and never come off since it claims that you will be able to remove the steel lines w/o losing threads again... which led me to my earlier question "IF" the "Saver" was steel which is way more compatable w/ the steel of the oil line nut vs. the original thermostat alum & steel oil line which created this problem in the first place...
Any more advise ~ experiences with this guys...??
Thanks,
Bob

The Thermostat Saver is designed to use the threads of the thermostat that were not covered by the fitting before. Most fittings, if not all, use only the first half of the thermostat housing's threads. I do not think the saver has threads that are "thread restorers". If you want to make it easier to get the fittings off in the future, I recommend putting anti-seize on the threads.

as you all can see... pic 1 & 4 are of the 2 w/ good threads... pic #2&3 are the issue...I don't see more than 2-3 threads left beyond where the steel oil line connected to the thermostat that "might" allow the "Saver" to grip onto... what do you all think??
Bob

I have to make a correction on my previous post. The saver uses the first third of the thermostat threads, not the last half. I pulled out a saver and photographed (below).
911tweeks, looking at your photos, pics 2&3, the saver solution does not look too good, imo.

Thanks Dave for your input.
Any ideas... I was thinking of buying a die to try and re-thread the 2 threadless connections... however, I thought about the cost of a die and is there enough material left to make more new threads now since I have lost material (aluminum) i.e. threads from the steal nuts?
Also, is the "Saver" steel or alum?? IF steel, it may "cut" new threads... possibly with what is left or should I try to buy a die or find a machine shop that will let me borrow their die to see if I can re thread them...
If the "Saver" is made of alum, will it make new threads??
I sure hope I am not looking at buying a new thermostat @ $300+...

Thanks Dave for your input.
Any ideas... I was thinking of buying a die to try and re-thread the 2 threadless connections... however, I thought about the cost of a die and is there enough material left to make more new threads now since I have lost material (aluminum) i.e. threads from the steal nuts?
Also, is the "Saver" steel or alum?? IF steel, it may "cut" new threads... possibly with what is left or should I try to buy a die or find a machine shop that will let me borrow their die to see if I can re thread them...
If the "Saver" is made of alum, will it make new threads??
I sure hope I am not looking at buying a new thermostat @ $300+...